CN112928830A - Double-coil wireless charging system, communication method and device thereof, and electronic equipment - Google Patents
Double-coil wireless charging system, communication method and device thereof, and electronic equipment Download PDFInfo
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- 230000009977 dual effect Effects 0.000 claims description 2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0091—Transmitter details
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses a double-coil wireless charging system, a communication method and device thereof, and electronic equipment, and belongs to the technical field of electronic equipment. The device comprises a transmitting end and a receiving end; the transmitting terminal comprises a first transmitting terminal and a second transmitting terminal, when the first transmitting terminal is communicated with the receiving terminal, the first transmitting terminal sends a first synchronization signal to the second transmitting terminal, and the signal is the message synchronization between the first transmitting terminal and the second transmitting terminal; the receiving end comprises a first receiving end and a second receiving end, when the first receiving end is communicated with the transmitting end, the first receiving end sends a second synchronous signal to the second receiving end, and the signal is the message synchronization between the first receiving end and the second receiving end; the first transmitting end is in wireless communication with the first receiving end, and the second transmitting end is in wireless communication with the second receiving end. The synchronous signal is set at the transmitting end, and the synchronous signal is set at the receiving end, so that messages between the two receiving ends are synchronous, signals are not sent outwards at the same time, and the situation of distortion caused by signal superposition is avoided.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a double-coil wireless charging system, a communication method and device thereof, and electronic equipment.
Background
With the development of wireless charging technology, the application of the wireless charging function in the terminal device is more and more popular, and the terminal device with the wireless charging function is more and more favored by users.
Current wireless battery charging outfit is mostly single coil equipment, and the charge rate is not fast enough, and twin coil is wireless fills and to accomplish bigger charging power, and the charge rate is one time big on single coil basis, promotes the user and charges and experience. However, in a Wireless system of Wireless Power Consortium (WPC) standard, if two coils operate simultaneously, communication signals on the two coils may couple with each other, which may cause the signal that should be the first path to be demodulated to the second path, and cause the signal not to be correctly demodulated; there is also a possibility that the signals in the two coils are superimposed, and the superimposed signals are easily distorted, so that the signals cannot be demodulated correctly.
Disclosure of Invention
The embodiment of the application provides a dual-coil wireless charging system, a communication method and a communication device thereof, and electronic equipment, which can solve the problem that signals cannot be correctly demodulated due to the fact that communication signals on two coils are possibly coupled with each other or signals in the coils are easily distorted due to mutual superposition when the existing dual-coil wireless charging system works.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, a dual-coil wireless charging system is provided, including: a transmitting end and a receiving end;
the transmitting end comprises a first transmitting end and a second transmitting end, wherein under the condition that the first transmitting end is communicated with the receiving end, the first transmitting end sends a first synchronization signal to the second transmitting end, and the first synchronization signal is used for carrying out message synchronization between the first transmitting end and the second transmitting end;
the receiving end comprises a first receiving end and a second receiving end, wherein under the condition that the first receiving end is communicated with the transmitting end, the first receiving end sends a second synchronous signal to the second receiving end, and the second synchronous signal is used for carrying out message synchronization between the first receiving end and the second receiving end;
the first transmitting end is in wireless communication with the first receiving end, and the second transmitting end is in wireless communication with the second receiving end.
In a second aspect, an electronic device is provided, comprising: a receiving end;
the receiving end comprises a first receiving end and a second receiving end, wherein under the condition that the first receiving end is communicated with the outside, the first receiving end sends a second synchronous signal to the second receiving end, and the second synchronous signal is used for carrying out message synchronization between the first receiving end and the second receiving end.
In a third aspect, a dual-coil wireless charger is provided, for wirelessly charging the electronic device according to the second aspect, and includes: a transmitting end;
the transmitting terminal comprises a first transmitting terminal and a second transmitting terminal, wherein under the condition that the first transmitting terminal is communicated with the receiving terminal, the first transmitting terminal sends a first synchronization signal to the second transmitting terminal, and the first synchronization signal is used for carrying out message synchronization between the first transmitting terminal and the second transmitting terminal.
In a fourth aspect, a communication method of a dual-coil wireless charging system is provided, where the dual-coil wireless charging system is applied to the first aspect, and the method includes:
when the first receiving end sends a first amplitude modulation signal to the first transmitting end, the first transmitting end demodulates the first amplitude modulation signal and sends a first synchronization signal to the second transmitting end;
after sending a first amplitude modulation signal from the first receiving end to the first transmitting end, the first receiving end sends a second synchronization signal to the second receiving end through a first preset time length, wherein the first preset time length is longer than a demodulation time length for demodulating the amplitude modulation signal by the first transmitting end.
In a fifth aspect, a communication device of a dual-coil wireless charging system is provided, including:
the first transmitting module is used for demodulating the first amplitude modulation signal by the first transmitting end and transmitting a first synchronization signal to the second transmitting end under the condition that the first receiving end transmits the first amplitude modulation signal to the first transmitting end;
the second sending module is configured to send a second synchronization signal to a second receiving end by the first receiving end after a first preset duration of sending the first amplitude modulation signal to the first sending end by the first receiving end, where the first preset duration is longer than a demodulation duration of demodulating the amplitude modulation signal by the first sending end.
In a sixth aspect, an electronic device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method according to the fourth aspect.
In a seventh aspect, a readable storage medium is provided, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the fourth aspect.
In an eighth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the fourth aspect.
The embodiment of the application discloses a dual-coil wireless charging system, which comprises a transmitting end and a receiving end, wherein the transmitting end comprises a first transmitting end and a second transmitting end, the first transmitting end sends a first synchronization signal to the second transmitting end under the condition that the first transmitting end is communicated with the receiving end, the first synchronization signal is used for carrying out message synchronization between the first transmitting end and the second transmitting end, and the receiving end comprises a first receiving end and a second receiving end, wherein the first receiving end sends a second synchronization signal to the second receiving end under the condition that the first receiving end is communicated with the transmitting end, and the second synchronization signal is used for carrying out message synchronization between the first receiving end and the second receiving end, the first transmitting end is in wireless communication with the first receiving end, and the second transmitting end is in wireless communication with the second receiving end. The synchronous signal is set at the transmitting end, the synchronous signal is set at the receiving end, message synchronization can be carried out between the two receiving ends, signals are not sent outwards simultaneously, superposition between the signals sent outwards is avoided, and the situation of distortion is caused.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of a dual-coil wireless charging system provided by an embodiment of the present application;
fig. 2 is a flowchart of a communication method of a dual-coil wireless charging system according to an embodiment of the present application;
fig. 3 is a schematic diagram of a communication device of a dual-coil wireless charging system according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an electronic device provided by an embodiment of the present application;
fig. 5 is a hardware structure diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
A dual-coil wireless charging system, a communication method thereof, an apparatus thereof, and an electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings and specific embodiments and application scenarios thereof.
Fig. 1 is a diagram of a dual-coil wireless charging system according to an embodiment of the present disclosure. As shown in fig. 1, the dual coil wireless charging system may include: a transmitting end and a receiving end.
Specifically, the transmitting end includes a first transmitting end TX1 and a second transmitting end TX2, wherein, in case that the first transmitting end TX1 communicates with the receiving end, the first transmitting end TX1 transmits a first synchronization signal to the second transmitting end TX2, the first synchronization signal being used for message synchronization between the first transmitting end and the second transmitting end; the receiving end comprises a first receiving end RX1 and a second receiving end RX2, wherein, in the case that the first receiving end RX1 is in communication with the transmitting end, the first receiving end RX1 transmits a second synchronization signal to the second receiving end RX2, and the second synchronization signal is used for message synchronization between the first receiving end RX1 and the second receiving end RX 2.
The first transmitting end is in wireless communication with the first receiving end, and the second transmitting end is in wireless communication with the second receiving end.
It should be noted that the first synchronization signal is a signal sent to another transmitting end when one transmitting end receives the amplitude modulation signal sent by the corresponding receiving end, and when the other transmitting end receives the first synchronization signal, it is known that the former transmitting end is demodulating the signal at this time, and no interference is generated.
The second synchronization signal is a signal sent by one receiving end to the other receiving end after the amplitude modulation signal is sent by the other receiving end for a period of time, wherein the period of time is longer than or equal to the time for the transmitting end to demodulate the amplitude modulation signal.
The transmitting end is a wireless charger end with a double coil, the receiving end is an electronic device end, such as a mobile phone, a bracelet and the like, and if the receiving end is a mobile phone, the mobile phone can further comprise other modules, such as a CPU, a battery, a camera, a display screen and the like.
The embodiment of the application discloses a dual-coil wireless charging system, which comprises a transmitting end and a receiving end, wherein the transmitting end comprises a first transmitting end and a second transmitting end, the first transmitting end sends a first synchronization signal to the second transmitting end under the condition that the first transmitting end is communicated with the receiving end, the first synchronization signal is used for carrying out message synchronization between the first transmitting end and the second transmitting end, and the receiving end comprises a first receiving end and a second receiving end, wherein the first receiving end sends a second synchronization signal to the second receiving end under the condition that the first receiving end is communicated with the transmitting end, and the second synchronization signal is used for carrying out message synchronization between the first receiving end and the second receiving end, the first transmitting end is in wireless communication with the first receiving end, and the second transmitting end is in wireless communication with the second receiving end. The synchronous signal is set at the transmitting end, the synchronous signal is set at the receiving end, message synchronization can be carried out between the two receiving ends, signals are not sent outwards simultaneously, superposition between the signals sent outwards is avoided, and the situation of distortion is caused.
In one possible implementation manner of the present application, a preamble of a first data packet sent by a first receiving end to a first transmitting end is different from a preamble of a second data packet sent by a second receiving end to a second transmitting end.
Wherein, the first data packet and the second data packet are both amplitude modulation data packets.
It is worth noting that the am packet consists of a preamble, a header, information and check. The lead code consists of 11-25bit 1 s, wherein 1 is square wave with a positive-negative duty ratio of 50%; the header, information and checksum may each comprise a plurality of bytes, one byte consisting of 11 bits.
Specifically, because the preambles of the data packets sent by the two receiving ends are different, even if the signals in the two coils are coupled with each other, the transmitting end can distinguish the respective data packets. By adjusting the length of the lead code of the transmitted data packet, communication signals of different coils can be distinguished, and the problem of mutual coupling demodulation errors of two paths is solved, so that wireless charging of the double coils is more stable.
An embodiment of the present application further provides an electronic device, which may include: and (4) receiving the data.
The receiving end comprises a first receiving end and a second receiving end, wherein under the condition that the first receiving end is communicated with the outside, the first receiving end sends a second synchronous signal to the second receiving end, and the second synchronous signal is used for carrying out message synchronization between the first receiving end and the second receiving end.
That is, the electronic device side is a receiving end, which has been described in detail in the foregoing embodiments, and is not described in detail in this embodiment.
The embodiment of the present application further provides a dual-coil wireless charger, configured to wirelessly charge an electronic device provided in the foregoing embodiment, where the dual-coil wireless charger may include: and a transmitting end.
The transmitting terminal comprises a first transmitting terminal and a second transmitting terminal, wherein under the condition that the first transmitting terminal is communicated with the receiving terminal, the first transmitting terminal sends a first synchronization signal to the second transmitting terminal, and the first synchronization signal is used for carrying out message synchronization between the first transmitting terminal and the second transmitting terminal.
That is, the dual-coil wireless charger is a transmitting terminal, which has been described in detail in the above embodiments, and is not described in detail in this embodiment.
The embodiment of the application also provides a communication method of the dual-coil wireless charging system, which is shown in fig. 2. The communication method of the dual-coil wireless charging system may include the contents shown in step S201 to step S202.
In step S201, when the first receiving end sends the first amplitude modulation signal to the first transmitting end, the first transmitting end demodulates the first amplitude modulation signal and sends the first synchronization signal to the second transmitting end.
In step S202, after sending the first amplitude modulation signal from the first receiving end to the first transmitting end, the first receiving end sends the second synchronization signal to the second receiving end for a first preset duration, where the first preset duration is longer than a demodulation duration for demodulating the amplitude modulation signal by the first transmitting end.
In this embodiment of the application, when a first receiving end sends a first amplitude modulation signal to a first transmitting end, the first transmitting end demodulates the first amplitude modulation signal and sends a first synchronization signal to a second transmitting end, and after the first receiving end sends the first amplitude modulation signal to the first transmitting end, the first receiving end sends a second synchronization signal to the second receiving end for a first preset time length, where the first preset time length is longer than a demodulation time length for the first transmitting end to demodulate the amplitude modulation signal. The synchronous signal is set at the transmitting end, the synchronous signal is set at the receiving end, message synchronization can be carried out between the two receiving ends, signals are not sent outwards simultaneously, superposition between the signals sent outwards is avoided, and the situation of distortion is caused.
The amplitude modulation signal is composed of a lead code, a header file, information and a check.
The lead code consists of 11-25bit 1 s, wherein 1 is square wave with positive and negative duty ratio of 50%; the header, information and checksum may each comprise a plurality of bytes, one byte consisting of 11 bits.
In one possible embodiment of the present application, the communication method of the dual-coil wireless charging system may further include: setting the length of a lead code of a first amplitude modulation signal sent by a first receiving end as a first length; and setting the length of the lead code of the second amplitude modulation signal sent by the second receiving end as a second length.
Wherein the second length is different from the first length.
According to the embodiment of the application, the communication signals of different coils can be distinguished by adjusting the lead code length of the sent amplitude modulation signal, the problem that the two channels are coupled with each other and demodulated wrongly is solved, and the double-coil wireless charging is more stable.
Optionally, an embodiment of the present application further provides a communication apparatus of a dual-coil wireless charging system, as shown in fig. 3, the apparatus may include: a first transmission module 301 and a second transmission module 302.
Specifically, the first sending module 301 is configured to, when the first receiving end sends the first amplitude modulation signal to the first sending end, demodulate the first amplitude modulation signal by the first sending end, and send the first synchronization signal to the second sending end; the second sending module 302 is configured to send a second synchronization signal to the second receiving end by the first receiving end after a first preset duration of sending the first amplitude modulation signal to the first transmitting end by the first receiving end, where the first preset duration is longer than a demodulation duration of demodulating the amplitude modulation signal by the first transmitting end.
In this embodiment, the first sending module 301 is configured to, when the first receiving end sends the first amplitude modulation signal to the first sending end, demodulate the first amplitude modulation signal by the first sending end, and send the first synchronization signal to the second sending end, and the second sending module 302 is configured to, after sending the first amplitude modulation signal from the first receiving end to the first sending end, send the second synchronization signal to the second receiving end by the first receiving end for a first preset duration, where the first preset duration is longer than a demodulation duration for demodulating the amplitude modulation signal by the first sending end. The synchronous signal is set at the transmitting end, the synchronous signal is set at the receiving end, message synchronization can be carried out between the two receiving ends, signals are not sent outwards simultaneously, superposition between the signals sent outwards is avoided, and the situation of distortion is caused.
The amplitude modulation signal is composed of a lead code, a header file, information and a check.
In one possible embodiment of the present application, the apparatus may further include: the device comprises a first setting module and a second setting module.
Specifically, the first setting module is configured to set a length of a preamble of a first amplitude modulation signal sent by a first receiving end to a first length; the second setting module is configured to set a length of a preamble of a second amplitude modulation signal sent by a second receiving end to a second length, where the second length is different from the first length.
The dual-coil wireless charging communication device provided by the embodiment of the application can realize each process realized by the communication method embodiment of the dual-coil wireless charging system, and is not repeated here for avoiding repetition.
Optionally, as shown in fig. 4, an electronic device 400 is further provided in this embodiment of the present application, and includes a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and executable on the processor 401, where the program or the instruction is executed by the processor 401 to implement each process of the above-mentioned control method embodiment of the anti-distortion circuit, and can achieve the same technical effect, and in order to avoid repetition, it is not described here again.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Figure 5 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the present application,
the electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and the like.
Those skilled in the art will appreciate that the electronic device 100 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 5 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
The processor 110 is configured to demodulate the first amplitude modulation signal by the first transmitting end and send a first synchronization signal to the second transmitting end when the first receiving end sends the first amplitude modulation signal to the first transmitting end; after sending a first amplitude modulation signal from a first receiving end to a first transmitting end, the first receiving end sends a second synchronous signal to a second receiving end through a first preset time length, wherein the first preset time length is longer than the demodulation time length of the first transmitting end for demodulating the amplitude modulation signal.
In this embodiment of the application, when a first receiving end sends a first amplitude modulation signal to a first transmitting end, the first transmitting end demodulates the first amplitude modulation signal and sends a first synchronization signal to a second transmitting end, and after the first receiving end sends the first amplitude modulation signal to the first transmitting end, the first receiving end sends a second synchronization signal to the second receiving end for a first preset time length, where the first preset time length is longer than a demodulation time length for the first transmitting end to demodulate the amplitude modulation signal. The synchronous signal is set at the transmitting end, the synchronous signal is set at the receiving end, message synchronization can be carried out between the two receiving ends, signals are not sent outwards simultaneously, superposition between the signals sent outwards is avoided, and the situation of distortion is caused.
The processor 110 may be further configured to: setting the length of a lead code of a first amplitude modulation signal sent by a first receiving end as a first length; and setting the length of the preamble of the second amplitude modulation signal transmitted by the second receiving end to be a second length, wherein the second length is different from the first length.
It should be understood that, in the embodiment of the present application, the input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics Processing Unit 1041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 109 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 110 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the communication method embodiment of the dual-coil wireless charging system, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the communication method embodiment of the foregoing dual-coil wireless charging system, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
The embodiment of the present application further provides a processing device, where the processing device is configured to execute each process of the communication method embodiment of the dual-coil wireless charging system, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. A dual-coil wireless charging system, comprising: a transmitting end and a receiving end;
the transmitting end comprises a first transmitting end and a second transmitting end, wherein under the condition that the first transmitting end is communicated with the receiving end, the first transmitting end sends a first synchronization signal to the second transmitting end, and the first synchronization signal is used for carrying out message synchronization between the first transmitting end and the second transmitting end;
the receiving end comprises a first receiving end and a second receiving end, wherein under the condition that the first receiving end is communicated with the transmitting end, the first receiving end sends a second synchronous signal to the second receiving end, and the second synchronous signal is used for carrying out message synchronization between the first receiving end and the second receiving end;
the first transmitting end is in wireless communication with the first receiving end, and the second transmitting end is in wireless communication with the second receiving end.
2. The system of claim 1, wherein a preamble of a first data packet sent by the first receiving end to the first transmitting end is different from a preamble of a second data packet sent by the second receiving end to the second transmitting end.
3. An electronic device, comprising: a receiving end;
the receiving end comprises a first receiving end and a second receiving end, wherein under the condition that the first receiving end is communicated with the outside, the first receiving end sends a second synchronous signal to the second receiving end, and the second synchronous signal is used for carrying out message synchronization between the first receiving end and the second receiving end.
4. A dual coil wireless charger for wirelessly charging the electronic device of claim 3, comprising: a transmitting end;
the transmitting terminal comprises a first transmitting terminal and a second transmitting terminal, wherein under the condition that the first transmitting terminal is communicated with the receiving terminal, the first transmitting terminal sends a first synchronization signal to the second transmitting terminal, and the first synchronization signal is used for carrying out message synchronization between the first transmitting terminal and the second transmitting terminal.
5. A communication method of a dual-coil wireless charging system, applied to the dual-coil wireless charging system according to claim 1 or 2, comprising:
when the first receiving end sends a first amplitude modulation signal to the first transmitting end, the first transmitting end demodulates the first amplitude modulation signal and sends a first synchronization signal to the second transmitting end;
after sending a first amplitude modulation signal from the first receiving end to the first transmitting end, the first receiving end sends a second synchronization signal to the second receiving end through a first preset time length, wherein the first preset time length is longer than a demodulation time length for demodulating the amplitude modulation signal by the first transmitting end.
6. The method of claim 5, wherein the amplitude modulated signal consists of a preamble, a header, information and a checksum.
7. The method of claim 6, further comprising:
setting the length of a lead code of a first amplitude modulation signal sent by the first receiving end to be a first length;
setting a length of a preamble of a second amplitude modulation signal transmitted by the second receiving end to a second length, wherein the second length is different from the first length.
8. A communication device of a dual-coil wireless charging system, comprising:
the first transmitting module is used for demodulating the first amplitude modulation signal by the first transmitting end and transmitting a first synchronization signal to the second transmitting end under the condition that the first receiving end transmits the first amplitude modulation signal to the first transmitting end;
the second sending module is configured to send a second synchronization signal to a second receiving end by the first receiving end after a first preset duration of sending the first amplitude modulation signal to the first sending end by the first receiving end, where the first preset duration is longer than a demodulation duration of demodulating the amplitude modulation signal by the first sending end.
9. The apparatus of claim 8, wherein the amplitude modulated signal consists of a preamble, a header file, information, and a checksum.
10. The apparatus of claim 9, further comprising:
a first setting module, configured to set a length of a preamble of a first amplitude modulation signal sent by the first receiving end to a first length;
a second setting module, configured to set a length of a preamble of a second amplitude modulation signal sent by the second receiving end to a second length, where the second length is different from the first length.
11. An electronic device, comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method of any of claims 5-7.
12. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any one of claims 5-7.
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